[cisco-nas] TCP header compression....questions

[Anastassios Chatzithomaoglou]

The following doc says it is possible to have fast/cef switching enabled + TCP header 
compression enabled at the same time.

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120t/120t7/rtpfast.htm

I have a 7200 (12.3(1)) used as a LNS for our DSL customers, but i can't see the above 
happening.

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When issuing "sh ip tcp header-compression":

Having enabling "ip tcp header-compression" shows TCP/IP header compression statistics.
Having enabling "ppp ipcp header-compression ack" doesn't show anything.

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How much will be the throughput gain (%) for DSL (PPPoE/PPPoA) clients when tcp header 
compression is enabled? I have heard it goes till 5%, not more.

-- 
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    Chatzithomaoglou Anastasios
Network Design & Operations Center
           FORTHnet S.A.
       <achatz at forthnet.gr>
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